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Research on topological structure and simulation of hybrid DC circuit breaker

机译：混合直流断路器拓扑结构与仿真研究

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摘要

At present, the hybrid DC circuit breaker (ABB company's Hybrid DC circuit breaker as the representative scheme) must be equipped with the radiator because of a long-time current passing through the power electronic devices in the load-control-switch (LCS). Therefore, the daily operation and maintenance work is increased, and the reliability of the whole circuit breaker is reduced，in order to solve the problem, a topological structure of hybrid DC circuit breaker was designed here. This design combines two current transfer ways. When circuit need to be cut-off, current transfer was from main branch to the branch of LCS, and then to the solid-state switch branch in which the current was cut-off by series of power electronic devices. A simulation model was built on PSCAD to verify the feasibility of this topological structure.
机译：目前，混合直流断路器（ABB公司的混合直流断路器作为代表方案）必须配备散热器，因为长时间电流通过负载控制开关（LCS）中的电力电子设备。因此，日常操作和维护工作增加，整个断路器的可靠性降低，为了解决问题，在此设计了混合直流断路器的拓扑结构。这种设计结合了两种电流传输方式。当电路需要截止时，电流传输从LCS的分支到MAIN分支，然后通过一系列电力电子设备截止电流的固态开关分支。建立在PSCAD上的仿真模型，以验证这种拓扑结构的可行性。

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  • 来源
    《The Journal of Engineering》 |2019年第16期|3310-3314|共5页
  • 作者

    Chu Zhuang; Xu Bing; Yu Zhanqing; Wang Nianhua;

  • 作者单位

    Northeast Electric Power University People's Republic of China;

    Northeast Electric Power University People's Republic of China;

    State Key Lab of Power Systems Dept. of Electrical Engineering Tsinghua University People's Republic of China;

    Northeast Elec;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    circuit breakers; reliability;

    机译：断路器;可靠性;

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